FIELD: equipment for impregnation, washing, extraction and leaching processes; applicable in chemical, pharmaceutical, food, wood-chemical and hydrometallurgical industries. SUBSTANCE: container 2 is installed in body 1 of pulsation apparatus. Container 2 has ring 3 with centering skirting 4, side part 6 made in the form of frame covered by net and permeable bottom 7. Upper part of side wall 6 is impermeable. Ratio of impermeable part height to container height is 0.2-0.6. Ratio of container height to its diameter is 1-3. EFFECT: higher reliability of pulsation apparatus and its operating efficiency due to excluded formation of plugs. 2 dwg
